prometheus/vendor/github.com/go-openapi/swag/pre_go19.go

56 lines
1.1 KiB
Go

// +build !go1.9
package swag
import (
"sort"
"sync"
)
// indexOfInitialisms is a thread-safe implementation of the sorted index of initialisms.
// Before go1.9, this may be implemented with a mutex on the map.
type indexOfInitialisms struct {
getMutex *sync.Mutex
index map[string]bool
}
func newIndexOfInitialisms() *indexOfInitialisms {
return &indexOfInitialisms{
getMutex: new(sync.Mutex),
index: make(map[string]bool, 50),
}
}
func (m *indexOfInitialisms) load(initial map[string]bool) *indexOfInitialisms {
m.getMutex.Lock()
defer m.getMutex.Unlock()
for k, v := range initial {
m.index[k] = v
}
return m
}
func (m *indexOfInitialisms) isInitialism(key string) bool {
m.getMutex.Lock()
defer m.getMutex.Unlock()
_, ok := m.index[key]
return ok
}
func (m *indexOfInitialisms) add(key string) *indexOfInitialisms {
m.getMutex.Lock()
defer m.getMutex.Unlock()
m.index[key] = true
return m
}
func (m *indexOfInitialisms) sorted() (result []string) {
m.getMutex.Lock()
defer m.getMutex.Unlock()
for k := range m.index {
result = append(result, k)
}
sort.Sort(sort.Reverse(byLength(result)))
return
}